I bought three of these Adidas watches with a 20mm silicone strap. I bought one (1) green watch; one in dark blue and one in gold. I love these watches because they are very comfortable and very pleasing to the eye. However, I would like to warn anyone looking to buy this watch in a darker color like black or navy blue: in low light (dark house, early morning or evening) the faces of darker watches can be quite difficult to read. Believe me. that's a cool watch. I love my